[PATCH 5/6][SRU][U] rtw88: do PHY calibration while starting AP

[AceLan Kao]

From: Ping-Ke Shih <pkshih at realtek.com>

BugLink: https://bugs.launchpad.net/bugs/1969326

Calling calibration to yield expected PHY performance. We do this in STA
mode, so do this in AP mode as well.

Signed-off-by: Ping-Ke Shih <pkshih at realtek.com>
Signed-off-by: Kalle Valo <kvalo at kernel.org>
Link: https://lore.kernel.org/r/20220407095858.46807-6-pkshih@realtek.com
(cherry picked from commit f5207c122102cac22c78f438610d937a924aee3a linux-next)
Signed-off-by: Chia-Lin Kao (AceLan) <acelan.kao at canonical.com>
---
 drivers/net/wireless/realtek/rtw88/mac80211.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw88/mac80211.c b/drivers/net/wireless/realtek/rtw88/mac80211.c
index 1ee41dfda5e1..30903c567cd9 100644
--- a/drivers/net/wireless/realtek/rtw88/mac80211.c
+++ b/drivers/net/wireless/realtek/rtw88/mac80211.c
@@ -429,6 +429,18 @@ static void rtw_ops_bss_info_changed(struct ieee80211_hw *hw,
 	mutex_unlock(&rtwdev->mutex);
 }
 
+static int rtw_ops_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	struct rtw_chip_info *chip = rtwdev->chip;
+
+	mutex_lock(&rtwdev->mutex);
+	chip->ops->phy_calibration(rtwdev);
+	mutex_unlock(&rtwdev->mutex);
+
+	return 0;
+}
+
 static int rtw_ops_conf_tx(struct ieee80211_hw *hw,
 			   struct ieee80211_vif *vif, u16 ac,
 			   const struct ieee80211_tx_queue_params *params)
@@ -886,6 +898,7 @@ const struct ieee80211_ops rtw_ops = {
 	.change_interface	= rtw_ops_change_interface,
 	.configure_filter	= rtw_ops_configure_filter,
 	.bss_info_changed	= rtw_ops_bss_info_changed,
+	.start_ap		= rtw_ops_start_ap,
 	.conf_tx		= rtw_ops_conf_tx,
 	.sta_add		= rtw_ops_sta_add,
 	.sta_remove		= rtw_ops_sta_remove,
-- 
2.25.1